Gigapans

A view of Buzzard Rocks, northern Massanutten Mountain (George Washington National Forest) from the trail up to Signal Knob on the opposite ridge. In between lies Fort Valley, and the incised meanders of Passage Creek

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Buzzard Rocks is the name for a prominent set of white cliffs at the northern end of the Massanutten Mountain System, in the George Washington National Forest. The cliffs are Silurian-aged Massanutten Sandstone, a quartz arenite. The beds dip very steeply toward the axis of the Massanutten Synclinorium at Buzzard Rocks...

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This is a view of the mine dump of the Dan Patch Pegmatite Mine, just west of Keystone, South Dakota. The light colored pegmatite rock is composed primarily of large crystals of quartz, albite feldspar, and muscovite, with lesser amounts of tourmaline and beryl. The pegmatite is an igneous rock that was intrusive int...

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A Brazilian granite known as "Minsk Green." Tthis sample features graphic granite, euhedral quartz, garnet, and more.
Sample measures 30 cm on a side.
Image made as part of the MAGIC project (Mid-Atlantic Geo-Imagery Collection) using Northern Virginia Community College's gigamacro rig, as seen here:
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Slightly stretched grains in Antietam Formation quartz sandstone, from western Blue Ridge. Depositional age is Cambrian, deformation is related to the late Paleozoic Alleghanian Orogeny.
Image made as part of the MAGIC project (Mid-Atlantic Geo-Imagery Collection) using Northern Virginia Community College's gigamacr...